The issue of a printer from Brother printing pages that are faint is typical. If your printer from Brother prints faded and sluggish pages, it is necessary to remove the cover, pull out the cartridges and verify whether they are filled with enough ink. If the cartridges don't have enough ink, print quality will decrease. Fill the cartridges with ink properly, then install the cartridges in your Brother printer, and print one test page to check whether the error has gone away. If the error is visible on the screen of your Brother printer, then replace the cartridges and see whether the issue has been resolved. To further assistance read out
how to fix a brother printer that wont print?